/*
 * Copyright 2010 Gal Dolber.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package com.unnison.framework.rebind.jsorm;

import com.google.gwt.core.ext.UnableToCompleteException;
import com.google.gwt.core.ext.typeinfo.JClassType;
import com.google.gwt.json.client.JSONParser;
import com.google.gwt.user.rebind.ClassSourceFileComposerFactory;
import com.google.gwt.user.rebind.SourceWriter;

import com.unnison.framework.client.jsorm.JsonSerializer;
import com.unnison.framework.client.jsorm.TypeJsonSerializer;
import com.unnison.framework.rebind.common.AbstractGenerator;

public class JsonSerializerGenerator extends AbstractGenerator {

    @Override
    protected void generate(SourceWriter writer) throws UnableToCompleteException {
        JClassType arg = baseClass.asParameterizationOf(getType(JsonSerializer.class.getCanonicalName()).isGenericType()).getTypeArgs()[0];

        String parameterType = arg.getParameterizedQualifiedSourceName();
        writer.println("private " + TypeJsonSerializer.class.getCanonicalName() + "<" + parameterType + "> serializer = "
            + JsonSerializerUtil.generate(logger, context, arg) + ".getSingleton();");

        writer.println("public String serialize(" + parameterType + " t) {");
        writer.println("return serializer.serialize(t).toString();");
        writer.println("}");

        writer.println("public " + parameterType + " deserialize(String json) {");
        writer.println("return serializer.deserialize(" + JSONParser.class.getCanonicalName() + ".parse(json));");
        writer.println("}");
    }

    @Override
    protected void processComposer(ClassSourceFileComposerFactory composer) {
        composer.addImplementedInterface(typeName);
    }
}
